Method parse_statement_inner

src/sql-parser/src/parser.rs:428–557

Parse a single top-level statement (such as SELECT, INSERT, CREATE, etc.), stopping before the statement separator, if any.

(&mut self)

    /// Parse a single top-level statement (such as SELECT, INSERT, CREATE, etc.),
    /// stopping before the statement separator, if any.
    fn parse_statement_inner(&mut self) -> Result<Statement<Raw>, ParserStatementError> {
        match self.next_token() {
            Some(t) => match t {
                Token::Keyword(CREATE) => Ok(self.parse_create()?),
                Token::Keyword(DISCARD) => Ok(self
                    .parse_discard()
                    .map_parser_err(StatementKind::Discard)?),
                Token::Keyword(DROP) => Ok(self.parse_drop()?),
                Token::Keyword(DELETE) => {
                    Ok(self.parse_delete().map_parser_err(StatementKind::Delete)?)
                }
                Token::Keyword(INSERT) => {
                    Ok(self.parse_insert().map_parser_err(StatementKind::Insert)?)
                }
                Token::Keyword(UPDATE) => {
                    Ok(self.parse_update().map_parser_err(StatementKind::Update)?)
                }
                Token::Keyword(ALTER) => Ok(self.parse_alter()?),
                Token::Keyword(COPY) => Ok(self.parse_copy()?),
                Token::Keyword(SET) => Ok(self.parse_set()?),
                Token::Keyword(RESET) => Ok(self
                    .parse_reset()
                    .map_parser_err(StatementKind::ResetVariable)?),
                Token::Keyword(SHOW) => Ok(Statement::Show(
                    self.parse_show().map_parser_err(StatementKind::Show)?,
                )),
                Token::Keyword(START) => Ok(self
                    .parse_start_transaction()
                    .map_parser_err(StatementKind::StartTransaction)?),
                // `BEGIN` is a nonstandard but common alias for the
                // standard `START TRANSACTION` statement. It is supported
                // by at least PostgreSQL and MySQL.
                Token::Keyword(BEGIN) => Ok(self
                    .parse_begin()
                    .map_parser_err(StatementKind::StartTransaction)?),
                Token::Keyword(COMMIT) => {
                    Ok(self.parse_commit().map_parser_err(StatementKind::Commit)?)
                }
                Token::Keyword(ROLLBACK) | Token::Keyword(ABORT) => Ok(self
                    .parse_rollback()
                    .map_parser_err(StatementKind::Rollback)?),
                Token::Keyword(TAIL) => {
                    Ok(self.parse_tail().map_parser_err(StatementKind::Subscribe)?)
                }
                Token::Keyword(SUBSCRIBE) => Ok(self
                    .parse_subscribe()
                    .map_parser_err(StatementKind::Subscribe)?),
                Token::Keyword(EXPLAIN) => Ok(self.parse_explain()?),
                Token::Keyword(DECLARE) => Ok(self.parse_declare()?),
                Token::Keyword(FETCH) => {
                    Ok(self.parse_fetch().map_parser_err(StatementKind::Fetch)?)
                }
                Token::Keyword(CLOSE) => {
                    Ok(self.parse_close().map_parser_err(StatementKind::Close)?)
                }
                Token::Keyword(PREPARE) => Ok(self.parse_prepare()?),
                Token::Keyword(EXECUTE) => Ok(self
                    .parse_execute()